CeO2/ionic liquid hybrid materials with enhanced humidity performance

CeO2/ionic liquid (IL) hybrid material has been successfully prepared by a facile ionothermal route under relatively mild temperature. When using it as sensing material for humidity sensor, the CeO2/IL hybrid material exhibits ultrafast response (4 s) and recovery (<1 s) performance. This result ranks it among the fastest ever reported values for humidity detection based on metal oxide sensor. (C) 2017 Elsevier B.V. All rights reserved.